JazCom on Droid

Uses React Native to show data.

App Stores

Google Play Store

Amazon App Store

APK

Example:

Metro + React Native Notes - Getting Started

Note: Make sure you have completed the Set Up Your Environment guide before proceeding.

To Initialize

Install react-native, Android Development tools, and recommended tooling for non-Expo development.

• Run npm install

Step 1: Start Metro (dev live reload service)

First, you will need to run Metro, the JavaScript build tool for React Native.

To start the Metro dev server, run the following command from the root of your React Native project:

npm start

Step 2: Build and run your app

With Metro running, open a new terminal window/pane from the root of your React Native project, and use one of the following commands to build and run your Android or iOS app:

Android

npm run android

iOS

For iOS, remember to install CocoaPods dependencies (this only needs to be run on first clone or after updating native deps).

The first time you create a new project, run the Ruby bundler to install CocoaPods itself:

bundle install

Then, and every time you update your native dependencies, run:

bundle exec pod install

For more information, please visit CocoaPods Getting Started guide.

npm run ios

If everything is set up correctly, you should see your new app running in the Android Emulator, iOS Simulator, or your connected device.

This is one way to run your app — you can also build it directly from Android Studio

Development Issues

:app:installDebug FAILED

• This link suggests doing some cleaning
  • pushd android
  • ./gradlew clean
  • popd
  • Possibly also clean/reinstall packages.
• In my case, it looks like the virtual Android device was simply hung. Force reboot or reset.

Troubleshooting

If you're having issues getting the above steps to work, see the Troubleshooting page.

To trigger debug menu

1. Either shake device or
2. adb shell input keyevent 82

Generate images from largest using res/gen-images.sh

Curl notes

curl   -H "Accept: application/json" -H "Content-Type: application/json"   -H "User-Agent: Dexcom Share/3.0.2.11 CFNetwork/711.2.23 Darwin/14.0.0"   -X POST https://share1.dexcom.com/ShareWebServices/Services/General/LoginPublisherAccountByName   -d '{"applicationId":"d8665ade-9673-4e27-9ff6-92db4ce13d13","accountName": "jazeee", "password": ""}'

curl   -H "Content-Length: 0" -H "Accept: application/json"   -H "User-Agent: Dexcom Share/3.0.2.11 CFNetwork/672.0.2 Darwin/14.0.0"   -X POST 'https://share1.dexcom.com/ShareWebServices/Services/Publisher/ReadPublisherLatestGlucoseValues?sessionId=abc123-342&minutes=1440&maxCount=1'

Output like:

[{
  "DT":"\/Date(1558231462000-0700)\/",
  "ST":"\/Date(1558231462000)\/",
  "Trend":"Flat",
  "Value":177,
  "WT":"\/Date(1558231462000)\/"
},{
  "DT":"\/Date(1558231162000-0700)\/",
  "ST":"\/Date(1558231162000)\/",
  "Trend":"Flat",
  "Value":169,
  "WT":"\/Date(1558231162000)\/"
}...
DT is device, ST is server. Trends used to be numbers, like 4 is flat, 3 is up, 2 is very up, 5 is down, 6 is very down. Now are strings.

Build Notes

Now: npx react-native build-android --mode=release

• Takes 5 minutes to build due to Expo
• ./android/app/build/outputs/bundle/release/app-release.aab

Truly speaking you only need to run ./build.sh Once built, you can upload the output file to Google Play Store: android/app/build/outputs/bundle/release/

You'll then need to do their release process.

Other Install notes (Obsolete)

Will need a keystore to sign the app. (Must use new file if you forgot the pwd LoL)

keytool -genkey -v -keystore ~/.gradle/jazcomkeystore -alias jazcomkeystore -keyalg RSA -keysize 2048 -validity 90000

See ~/.gradle/gradle.properties for default

cd android
./gradlew assembleRelease
ls -la app/build/outputs/apk/release/app-release-unsigned.apk
# Note - you will need to choose your own keystore, and key-alias.
/opt/android-sdk/build-tools/28.0.3/apksigner sign --ks ~/.gradle/jazcomkeystore --ks-key-alias jazcomkeystore --out app/build/outputs/apk/release/app-release.apk app/build/outputs/apk/release/app-release-unsigned.apk

adb install -f app/build/outputs/apk/release/app-release.apk

 2099  cp ../cgm/apktool/new/release-key-dexcom.jks android/app/
 2100  vi android/gradle.properties
 2101  mv android/app/release-key-dexcom.jks ~/.gradle/
 2102  vi ~/.gradle/gradle.properties
 2103  rm ~/.gradle/release-key-dexcom.jks
 2104  vi ~/.gradle/gradle.properties
 2105  keytool -genkey -v -keystore ~/.gradle/jazcomkeystore -alias jazcomkeystore -keyalg RSA -keysize 2048 -validity 90000
 2107  cd android/
 2108  ./gradlew assembleRelease
 2113  ls -la build
 2114  ls -la build/intermediates/
 2115  find ./ -name *.apk
 2116  ls -la app/build/outputs/apk/release/app-release-unsigned.apk
 2117  cat ../cgm/apktool/build-and-deploy.sh
 2118  cat ../../cgm/apktool/build-and-deploy.sh
 2119  /opt/android-sdk/build-tools/28.0.3/apksigner sign --ks ~/.gradle/jazcomkeystore --out app/build/outputs/apk/release/app-release.apk app/build/outputs/apk/release/app-release-unsigned.apk
 2120  adb install -r app/build/outputs/apk/release/app-release.apk
 2121  /opt/android-sdk/build-tools/23.0.2/
 2122  /opt/android-sdk/build-tools/23.0.2/apksigner sign --ks ~/.gradle/jazcomkeystore --out app/build/outputs/apk/release/app-release.apk app/build/outputs/apk/release/app-release-unsigned.apk
 2123  /opt/android-sdk/build-tools/28.0.3/zipalign -v -p 4 app/build/outputs/apk/release/app-release-unsigned.apk app/build/outputs/apk/release/app-release-unsigned-aligned.apk
 2124  /opt/android-sdk/build-tools/28.0.3/apksigner sign --ks ../../cgm/apktool/new/release-key-dexcom.jks --out app/build/outputs/apk/release/app-release.apk app/build/outputs/apk/release/app-release-unsigned-aligned.apk


 2126  adb install -rf app/build/outputs/apk/release/app-release.apk